Monitor Data using fx3u.enet.l

[Thenoobs 0]

I use delphi to program and connect to fx3u-enet-l using actfxenettcp component. I can connect and retrieve data using readdeviceblock2 from the plc. The problem is, If i put the readdeviceblock2 in a loop to always monitor data, it only work for 1 or 2 minutes. Then the connection close. How to monitor data in real time using actfxenettcp?

 

Operational setting:

Communication data binary. Initial timing always wait for open. Send frame ethernet. Tcp existence use the ping.

Open setting:

Protocol tcp. Opensystem unpassive. Fixed buffer read. Procedure exist. Pairing open disabled. Existence no confirm.

[kaare_t 155]

I would say that there's a problem with your Delphi code, but there might be an error in MX Components of course.

Could you make a screenshot of your settings in FX-ConfiguratorEN, and a text file of a sample Delphi<->PLC program?

[Thenoobs 0]

The code similar to this:

Actfxenettcp.cputype := 520;

Actfxenettcp.hostport := 1300;

Actfxenettcp.timeout := 5000;

Actfxenettcp.hostip := '192.168.0.2';

If Actfxenettcp.open = 0 then timer.enabled := true;

 

Ontimer: timer interval 500

Var a: smallint;

Begin

Actfxenettcp.readdeviceblock2('D300',1,a);

Label1.caption := a.tostring;

End;

[kaare_t 155]

Do you also have screenshots of the FX Configurator EN settings (all modified settings)?

[Thenoobs 0]

[kaare_t 155]

First: Try setting FX ConfiguratorEN settings as per the image.

Second: in your Delphi code you should have a break in the timer in case the conncetion is unexpected closed again (cable failure or similar) so that the connection can be reestablished at a later point.

Third (if both the above fails): What happens if you increase the timer interval? Have you tried setting it to e.g. 5 seconds as a test?

[Thenoobs 0]

I notice if I put 2 or more consecutive readdeviceblock  cause the error.

If I put delay between readdeviceblock, I can manage to reduce the amount of error. 

this code gives error everytime

while 1 do

begin

readdeviceblock('X0',4,x[0]);

readdeviceblock('Y0',4,y[0]);

end;

 

this code gives error sometimes (not as much)

while 1 do

begin

readdeviceblock('X0',4,x[0]);

delay(500);

readdeviceblock('Y0',4,y[0]);

delay(500);

end;

[kaare_t 155]

Did you set the comm params as in the picture?

What kind of error do you get?